Double-shovel plow



(No Model.)

G. 0. AVERY.

DOUBLE SHOVEL PLOW. No. 285,723. Patented Sept. 25, 1883.

N. PETERS. mm Lum -1 m, wad-mm. u c.

-larged scale.

2 UNITED STATES j PATENT OFFICE.

GEORGE O. AVERY, OF LOUISVILLE, KENTUCKY.

,DOUBLE-SHOVEL PLOW.

SPECIFICATION forming part of Letters Patent No. 285,723, dated September 25, 1883.

Application filed March 31, i883. (No model.)

- To all whom zit-may concern:

7 Be it known that I, GEORGE O. AVERY, of Louisville, in the county of Jefferson and-State of Kentucky, have invented a new and useful Double-Shovel'Plow; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this specification.

My invention relates to certain new and useful improvements in cultivating implements; and it consists, essentially, in the novel features of construction, which will be hereinafter more fully explained, (and which will be particularly specified in the claim of this application,) in what I denominate an expanding,wooden beam, iron standard double-shovel plow.

To enable those skilled in the art to which my invention relates to understand and practice the same, Iwill now proceed to more fully describe the construction and operation of a double-shovel plow embracing my improvements carried out in that form in which I have so far successfully practiced my invention, (and which is the best form for carrying out the same now known to me,) referring by letters to the accompanying drawings, which make part of this specification. a

In the drawings, Figure 1 is a side elevation. Fig. 2 is a top view. Fig. 3 is a partial vertical section at the line 00 wof Fig. 2, en-

Fig. 4. is a partial horizontal section at the line y yof Fig. 3, enlarged scale. Fig. 5 Y is a detail view, on a somewhat enlarged scale, showing in a detached condition one of the shoe-pieces or castings applied to the rearmost portion of the wooden beam of the plow; and Fig. 6 is a detail View, on a like scale, showing detached one of the brace blocks or pieceswhich serve to hold apart the rearmost portion of the wooden beam of the plowand the metallic standards orbeams which carry the shovels, and which are arranged on either side of said wooden beam.

In the several figures the same part will be found designated by the same letter of. reference. 1

A is the main wooden beam of the plow or implement, provided, as usual, at its forward end with a 'clevis, a, and having secured to it on either side, at or near its middle, (endwise,) the forward ends of the two metallic beams or bearers O and D, which carry at their lower downwardly-curved ends, respecttively, the shovels or blades E and F, the said blades being secured in about the usual man ner, as shown, to the depending portions of the metallic beams O and D'by means of boltlike studs b, which pass through the support; ing standards, and are secured thereto by means of the usual nuts, 0, all as plainly shown in the drawings. The metallic shovel-carrying beams O and D diverge rearwardly from their forward ends at either side of the main wooden beam A until they reach points nearly opposite the rear end of said wooden beam, from whence they run rearwardly in directions about parallel with each other and with the direction of length of the main beam A, as best seen at Fig. 2, one of them extending rearwardlysome distance before it descends,while the other is curved downwardly at a point some distance in advance of that at which descends the first mentioned, as best seen by reference to Fig. 1.

Near the rear end of the wooden beam Ais arranged, on either side of it, metallic shoe pieces or castings e, which, as shown, are formed with inwardly-projecting flanges at their upper and lower edges, which overlap the top and bottom surfaces of said wooden beam A and adapt the said shoe-pieces to move or slide longitudinally on the beam A, in a manner and for the purpose to be presently explained. The said shoe-pieces are also slotted longitudinally, as clearly shown at f, Fig. 5, and are formed with a series of notched steps, 1 2 8, for the accommodation of the inner ends of two brace-blocks or metallic stays, S S, which are arranged or located between said shoe-pieces and the inner sides of the metallic beams O and D, as clearly illustrated. These blocks or stay-pieces are perforated longitudinally for the accommodation of a tie-rod, t, which passes throughboth of them, and also through the slots of the shoepieces, as well as through a slot in the rearmost portion of the wooden beam A and bolt: holes in the metallic shovel-beams O and D,

the said tie-rod being provided at each of its screw-threaded ends with an ordinary nut, such as shown at 9' j. Confined between the faces of said nuts and the outer faces of the metallic beams O and D are the lower ends of two upwardly-proj ecting metallicstandards, 70 k,'to the upper ends of which are secured, by bolts Z and nuts m, the forward lowermost ends of the handles or handle-beams I of the implement, the said handle beams or bars extending backwardly in a diverging manner, and being united near their rearmost ends by a wooden cross-bar, J, and being formed with curved hand pieces or portions at L, all in about the usual and well-known manner.

A short distance in rear of the points at which the forward ends of the handle-beams are attached to the metallic standards, as just explained, are located two metallic links or thin fiat bars, M and N, which, as shown, are pivoted, respectively, at their lower ends to the metallic shovel-beams, and which are connected, respectively, at their upper ends to the inner faces of the handle-pieces by means of bolts 1) and nuts q, each of said bolts passing through a hole made in one of the handlebeams, and through any one of several holes made in the upper portion of the metallic bars or braces, in which said bolt may be placed at the option of the user of the implement for the purpose of adjusting the handle-pieces, as may be desired.

In the drawings I have shown the devices by means of which I am enabled to set and hold the shovel-beams and their shovels at va- 7 rious distances apart, adjusted or arranged so that the metallic blocks S S have their inner and adjacent ends seated on the middle notched steps of the shoe-pieces e,- and it will be understood that this represents the medium distance apart at which the shovels may be set, while by an adjustment of the notched shoepieces, so as to have the inner ends of said metallic blocks seated in the notched steps 3 3, the shovels will be set and held at the maximum distance apart, and by a different adjustment of the parts, so as to have the inner ends of the said metallic'blocks seated in the notches Z Z of said shoe-pieces, the said shovels will be set and held at the minimum distanceapart.

From what has already been said in connection with the drawings, forming part of this specification it will be understood that in the operation of my improved cultivating implement the shovels or blades may be set at various distances apart (to adapt the machine for operation where the furrows in the ground are different distances apart) by simply loosening the nuts j j, then shifting or sliding the shoepieces 6 so as to bring a different set of their notched steps in line with the metallic blocks S S, which are hung 011 the tie-rod i, and then retightening or screwing up the said nuts j j, so as to securely hold in place the adjustable parts referred to; and it will be seen that this longitudinal adjustment of the shoe-pieces e for the purpose mentioned is permitted by reason of the said shoe-pieces being slotted longitudinally, to permit the requisite extent of motion, while the tie-rod 2' remains always in the same position. Of course the said shoepieces may be made with a greater or less number of notched steps, and the other details of con struction of the devices, by means of which I accomplish with facility the setting and holding at different distances apart of the metallic shovel-beams, may be varied without departing from the principle of my invention, so long as the construction and operation are such, as described, that by means of a single tie-rod passing through the shovel-beams and through the central wooden beam, A, and suitable devices for chocking or bracing the inner or adjacent surfaces of the metallic shovel-beams against portions of the sliding shoe-pieces, which project more or less, and nuts or other devices for clamping and holding (securelyin adjustment) the said checking-pieces, are employed.

It will be observed that the tie-rod 5 is located in a plane or at a level somewhat below that of the middle of the wooden beam A-that is, considerably nearer to the lower edge of the surface of said beam thanto its uppermost surface-and that consequently the hole in the beam A, and also the slots in the metallic shoepieces e, bear a similar relationship to the middle of the wooden beam A. The object and effect of this relative arrangement of the parts is that the contrivance may be better capable of withstanding the downward pressure or strain which occurs at the rear end of the main beam A when the draft-power is applied to the clevis during the operation of the cultivator. It will be understood that the downward tendency of the rear end of beam A excites atendency at the lower inner portions, :0 00, of the pieces S S to move or spring away from their bearings against the vertical sides of the shoepieces 6 in arcs of motion, the centers of which would be at the points y y, and that hence the ICC lower down the tie-rodz' (whi eh holds the parts together) be placed the better will it possess the necessary capacity to overcome any such tendency of the parts to separate, and the more effieient will the organization be.

I do not of course wish to be understood as limiting my claim of inventionto any particu lar form of cultivating implement to which my improvement may be applied, or to which it may be adapted by mere modifications; but,

Having so fully explained the construction and operation of acultivatingimplement such as I have so far applied my invention to in practice, what I claim as new, and desire to secure by Letters Patent, is-

In combination withtheusualbeam, A, and

step-likeprojections 1, 2, and 3, intermediate blocks or chocking-pieces, SS, adapted to 0perate as stays 0r braces between the inner faces of the shovel-beams and the step-like projections of the metallic shoes, and a suitable tierod and nut, or'the equivalents ,thereof,,f0r clamping or holding-in place (when adjusted) the said stay-pieces and the said metallic shoes,

all substantially in the manner specified, and for the purposes set forth.

In testimony whereof I have hereunto set my hand this 19th day of March, 1883.

' GEORGE G. AVERY.

In presence of- G120. PORTEOUS, W. O. GATES. 

